package com.sky.service.impl;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.CategoryDTO;
import com.sky.dto.CategoryPageQueryDTO;
import com.sky.entity.Category;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.CategoryMapper;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.CategoryService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;

/**
 * @Author by 孙有泽
 * @Date 2025/2/28 10:12
 * @Description 菜品分类serviceImpl
 */
@Service
public class CategoryServiceImpl implements CategoryService {

    @Autowired
    private CategoryMapper categoryMapper;

    @Autowired
    private DishMapper dishMapper;

    @Autowired
    private SetmealMapper setmealMapper;
    @Override
    public void saveCategory(CategoryDTO categoryDTO) {
        Category category = new Category();
        BeanUtils.copyProperties(categoryDTO,category);
        category.setStatus(0);
  /*      category.setCreateTime(LocalDateTime.now());
        category.setUpdateTime(LocalDateTime.now());
        category.setCreateUser(BaseContext.getCurrentId());
        category.setUpdateUser(BaseContext.getCurrentId());*/
        categoryMapper.saveCategory(category);
    }

    @Override
    public PageResult list(CategoryPageQueryDTO categoryPageQueryDTO) {
        PageHelper.startPage(categoryPageQueryDTO.getPage(),categoryPageQueryDTO.getPageSize());
        Page<Category> page=categoryMapper.list(categoryPageQueryDTO.getName(),categoryPageQueryDTO.getType());
        return new PageResult(page.getTotal(),page.getResult());
    }

    @Override
    public void updateStatus(Integer status, Long id) {
        Category category = Category.builder()
                .status(status)
                .updateTime(LocalDateTime.now())
                .updateUser(BaseContext.getCurrentId()).
                id(id).build();
        categoryMapper.update(category);
    }

    @Override
    public void deleteCategory(Long id) {
        Integer dishCount = dishMapper.selectCountByCategoryId(id);
        Integer setmealCount = setmealMapper.selectCountByCategoryId(id);
        if(dishCount>0){
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_DISH);
        }
        if (setmealCount>0){
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_SETMEAL);
        }
        categoryMapper.deleteCategory(id);
    }

    @Override
    public void updateCategory(CategoryDTO categoryDTO){
            Category category = new Category();
            BeanUtils.copyProperties(categoryDTO, category);
 /*       category.setUpdateTime(LocalDateTime.now());
        category.setUpdateUser(BaseContext.getCurrentId());*/
            categoryMapper.update(category);
        }

    @Override
    public List<Category> categoryByType(Integer type) {
        List<Category> list=categoryMapper.getCategoryByType(type);
        return list;
    }

}
